for Nikon G lens and Sony A7ii,please use this item, asin B07D5DV4PR,hope it helps. and if you need more help, please let us know. 

You can attach any Nikon F mount lens to it but there is no electrical contact so an AF-S lens will be manual focus only. Also there will be no metering so exposure will be trial and error. The aperture will also be stuck to its smallest setting, likely f/22 so the screen will be dark. If you have a "D" lens with an aperture ring then you can set it at it's widest setting to focus and then stop down if necessary. Similarly boosting the ISO to aid focus may work. I have a 90mm macro lens with an aperture ring and I set it to f/2.8 to focus and then rotate the ring back to my desired aperture if necessary. One workaround to help with the aperture would be to use either tape to hold open the aperture before mounting the lens or blue tack. Even with all the added problems to use an F mount lens with this it is still cheap and kind of fun. 

You need a Minolta AF to Sony E/NEX adapter. The MD/MC Minolta mount is different from the AF mount, so the AF lenses don't physically fit the MD-NEX adapter. 

I dont believe so since i bought it for a Canon 80d. I didnt buy it for a Nikon camera. You will likely need a different adapter 

Any lens that use the M42 size screw in mount. The only other screw mount is M39 and these won’t fit, they would need a different adaptor. They will invariably be vintage lenses and you will only be able to use them in the aperture priority or manual modes, stopping town the iris when metering. Search on EBay for “M42 lens”, that will give you an idea of what you can find.